ELECTRIC WOOD CHIPPER
& SHREDDER
Instruction Manual
MODEL 41121
IMPORTANT: Your new tool has been engineered and manufactured to WEN’s highest standards for dependability,
ease of operation, and operator safety. When properly cared for, this product will supply you years of rugged,
trouble-free performance. Pay close attention to the rules for safe operation, warnings, and cautions. If you use
your tool properly and for its intended purpose, you will enjoy years of safe, reliable service.
NEED HELP? CONTACT US!
Have product questions? Need technical support? Please feel free to contact us:
TECHSUPPOR[email protected]1-800-232-1195 (M-F 8AM-5PM CST)
For replacement parts and the most up-to-date instruction manuals, visit WENPRODUCTS.COM
2
CONTENTS
WELCOME 3
Introduction ..................................................................................................... 3
Specifications ................................................................................................... 3
SAFETY 4
General Safety Rules ........................................................................................ 4
Specific Rules for Your Shredder ..................................................................... 6
Electrical Information ....................................................................................... 7
BEFORE OPERATING 8
Unpacking & Transportation ............................................................................ 8
Know Your Shredder ........................................................................................ 9
Assembly & Adjustments ............................................................................... 10
OPERATION & MAINTENANCE 11
Operation ....................................................................................................... 11
Troubleshooting Guide ................................................................................... 12
Maintenance ................................................................................................... 13
Exploded View & Parts List ............................................................................ 15
Warranty Statement ....................................................................................... 17
To purchase accessories for your tool, visit WENPRODUCTS.COM
Replacement Blades (Part No. 41121B)
INTRODUCTION
Thanks for purchasing the WEN shredder. We know you are excited to put your tool to work, but first, please take
a moment to read through the manual. Safe operation of this tool requires that you read and understand this op-
erator’s manual and all the labels affixed to the tool. This manual provides information regarding potential safety
concerns, as well as helpful assembly and operating instructions for your tool.
NOTE: The following safety information is not meant to cover all possible conditions and situations that may occur.
WEN reserves the right to change this product and specifications at any time without prior notice.
At WEN, we are continuously improving our products. If you find that your tool does not exactly match this manual,
please visit wenproducts.com for the most up-to-date manual or contact our customer service at 1-800-232-1195.
Keep this manual available to all users during the entire life of the tool and review it frequently to maximize
safety for both yourself and others.
SAFETY ALERT SYMBOL: Indicates danger, warning, or caution. The safety symbols and the explanations
with them deserve your careful attention and understanding. Always follow the safety precautions to reduce the
risk of fire, electric shock or personal injury. However, please note that these instructions and warnings are not
substitutes for proper accident prevention measures.
SPECIFICATIONS
Model Number 41121
Motor 120V, 60Hz, 15A
Maximum Speed 4000 RPM
Recommended Material Diameter 0 to 1 inches (0 to 25.4 mm)
Maximum Material Diameter 1-1/2 inches (38 mm)
Cutterhead Size 7 inches
Weight 30.3 pounds
Product Dimensions 17.1 x 12.8 x 25.6 inches
3
GENERAL SAFETY RULES
4 5
WORK AREA SAFETY
1. Keep work area clean and well lit. Cluttered or dark
areas invite accidents.
2. Do not operate power tools in explosive atmo-
spheres, such as in the presence of flammable liq-
uids, gases or dust. Power tools create sparks which
may ignite the dust or fumes.
3. Keep children and bystanders away while operat-
ing a power tool. Distractions can cause you to lose
control.
ELECTRICAL SAFETY
1. Power tool plugs must match the outlet. Never
modify the plug in any way. Do not use any adapter
plugs with earthed (grounded) power tools. Unmodi-
fied plugs and matching outlets will reduce risk of elec-
tric shock.
2. Avoid body contact with earthed or grounded sur-
faces such as pipes, radiators, ranges and refrigera-
tors. There is an increased risk of electric shock if your
body is earthed or grounded.
3. Do not expose power tools to rain or wet condi-
tions. Water entering a power tool will increase the risk
of electric shock.
4. Do not abuse the cord. Never use the cord for carry-
ing, pulling or unplugging the power tool. Keep cord
away from heat, oil, sharp edges or moving parts.
Damaged or entangled cords increase the risk of elec-
tric shock.
5. When operating a power tool outdoors, use an ex-
tension cord suitable for outdoor use. Use of a cord
suitable for outdoor use reduces the risk of electric
shock.
6. If operating a power tool in a damp location is
unavoidable, use a ground fault circuit interrupter
(GFCI) protected supply. Use of a GFCI reduces the risk
of electric shock.
PERSONAL SAFETY
1. Stay alert, watch what you are doing and use com-
mon sense when operating a power tool. Do not use a
power tool while you are tired or under the influence
of drugs, alcohol or medication. A moment of inatten-
tion while operating power tools may result in serious
personal injury.
2. Use personal protective equipment. Always wear
eye protection. Protective equipment such as a respi-
ratory mask, non-skid safety shoes and hearing protec-
tion used for appropriate conditions will reduce the risk
of personal injury.
3. Prevent unintentional starting. Ensure the switch is
in the off-position before connecting to power source
and/or battery pack, picking up or carrying the tool.
Carrying power tools with your finger on the switch or
energizing power tools that have the switch on invites
accidents.
4. Remove any adjusting key or wrench before turning
the power tool on. A wrench or a key left attached to a
rotating part of the power tool may result in personal
injury.
5. Do not overreach. Keep proper footing and balance
at all times. This enables better control of the power
tool in unexpected situations.
6. Dress properly. Do not wear loose clothing or jew-
elry. Keep your hair and clothing away from moving
parts. Loose clothes, jewelry or long hair can be caught
in moving parts.
Safety is a combination of common sense, staying alert and knowing how your item works. The term “power tool”
in the warnings refers to your mains-operated (corded) power tool or battery-operated (cordless) power tool.
SAVE THESE SAFETY INSTRUCTIONS.
WARNING! Read all safety warnings and all instructions. Failure to follow the warnings and instructions
may result in electric shock, fire and/or serious injury.
GENERAL SAFETY RULES
4 5
7. If devices are provided for the connection of dust
extraction and collection facilities, ensure these are
connected and properly used. Use of dust collection
can reduce dust-related hazards.
POWER TOOL USE AND CARE
1. Do not force the power tool. Use the correct power
tool for your application. The correct power tool will
do the job better and safer at the rate for which it was
designed.
2. Do not use the power tool if the switch does not turn
it on and off. Any power tool that cannot be controlled
with the switch is dangerous and must be repaired.
3. Disconnect the plug from the power source and/or
the battery pack from the power tool before making
any adjustments, changing accessories, or storing
power tools. Such preventive safety measures reduce
the risk of starting the power tool accidentally.
4. Store idle power tools out of the reach of children
and do not allow persons unfamiliar with the power
tool or these instructions to operate the power tool.
Power tools are dangerous in the hands of untrained
users.
5. Maintain power tools. Check for misalignment or
binding of moving parts, breakage of parts and any
other condition that may affect the power tool’s opera-
tion. If damaged, have the power tool repaired before
use. Many accidents are caused by poorly maintained
power tools.
6. Keep cutting tools sharp and clean. Properly main-
tained cutting tools with sharp cutting edges are less
likely to bind and are easier to control.
7. Use the power tool, accessories and tool bits, etc.
in accordance with these instructions, taking into ac-
count the working conditions and the work to be per-
formed. Use of the power tool for operations different
from those intended could result in a hazardous situa-
tion.
8. Use clamps to secure your workpiece to a stable
surface. Holding a workpiece by hand or using your
body to support it may lead to loss of control.
9. KEEP GUARDS IN PLACE and in working order.
SERVICE
1. Have your power tool serviced by a qualified repair
person using only identical replacement parts. This
will ensure that the safety of the power tool is main-
tained.
CALIFORNIA PROPOSITION 65 WARNING
Some dust created by power sanding, sawing, grinding,
drilling, and other construction activities may contain
chemicals, including lead, known to the State of Califor-
nia to cause cancer, birth defects, or other reproductive
harm. Wash hands after handling. Some examples of
these chemicals are:
• Lead from lead-based paints.
• Crystalline silica from bricks, cement, and other
masonry products.
• Arsenic and chromium from chemically treated
lumber.
Your risk from these exposures varies depending on
how often you do this type of work. To reduce your ex-
posure to these chemicals, work in a well-ventilated area
with approved safety equipment such as dust masks
specially designed to filter out microscopic particles.
Safety is a combination of common sense, staying alert and knowing how your item works. The term “power tool”
in the warnings refers to your mains-operated (corded) power tool or battery-operated (cordless) power tool.
SAVE THESE SAFETY INSTRUCTIONS.
WARNING! Read all safety warnings and all instructions. Failure to follow the warnings and instructions
may result in electric shock, fire and/or serious injury.
SHREDDER SAFETY
1. This shredder is designed for cutting up small
branches, using the appropriate accessories. Using the
machine for any other purpose for which it is not de-
signed may result in serious injuries, machine damage
and voiding of the warranty.
2. The use of accessories or attachments not recom-
mended by the manufacturer may result in a risk of per-
sonal injury.
3. Preventing accidental starting. Make sure the power
switch is in the OFF position prior to plugging in the
machine. Always make sure the power switch is in the
OFF position and the machine is unplugged when doing
any cleaning, adjustments, assembly, setup operations,
or when not in use.
PERSONAL SAFETY
1. Do not use the shredder in rainy or wet locations.
Do not operate in gaseous or explosive atmospheres or
near flammable or combustible liquids. The motor may
spark and ignite fumes.
2. The shredder must be used in the upright position
only. Do not operate the shredder with it lying on its
side. Do not tilt the shredder while it is running.
3. Wear ANSI Z87.1-approved safety goggles to protect
your eyes. Use hearing protection to protect yourself
from hearing loss.
4. DO NOT wear loose clothing or jewelry as they might
get drawn in by the tool. Tie back long hair. Wear rubber
gloves and non-slip footwear.
5. People with pacemakers should consult their
physician(s) before use. Electromagnetic fields in close
proximity to pacemakers could cause pacemaker inter-
ference or pacemaker failure.
6. Chips are harmful to your health. Use NIOSH-ap-
proved dust masks or other respiratory protection dur-
ing operation and cleaning.
PREPARING THE SHREDDER
1. Use the wheels and handle to transport the shredder.
Never carry the device by its guards or its accessories.
2. Examine the shredder for any damaged or missing
parts. Replace or repair damaged parts before opera-
tion. Periodically check that all nuts, bolts and other fas-
teners are properly tightened.
3. Do not operate this tool until it is completely assem-
bled and installed according to the instructions. Make
sure all adjustments are correct and all connections are
tight. Keep all guards in place. Make sure that the hop-
per inlet is empty before starting the shredder.
DURING OPERATION
1. Examine materials before feeding them into the
shredder. Make sure to remove pieces of metal, rocks,
bottles, cans or other foreign objects. Before you shred
roots, remove any remaining soil and stones from them.
Do not shred soft, damp material such as kitchen waste.
2. Feed materials slowly. Always use the paddle sup-
plied with your shredder to push items into the hop-
per. Do not force materials into the hopper. Do not feed
materials larger than the recommended diameter of 1.5
inches, otherwise you may clog the shredder and dam-
age the machine.
3. Keep clear of moving parts and openings. Keep arms,
hands and other vital appendages away from the hop-
per, blades, and discharge chute. Never put your hands
into the hopper while the shredder is running. Always
stand clear of the discharge zone when operating the
shredder. Never reach under the hopper until the shred-
der has come to a complete stop and has been discon-
nected from the power supply. Never attempt to cut
anything with the grinding wheel.
4. Do not use the shredder unless all guards are in place.
Do not operate with any guard disabled, damaged, or
removed. Moving guards must move freely and close
instantly.
SPECIFIC RULES FOR YOUR SHREDDER
WARNING! Do not operate the power tool until you have read and understood the following instructions
and the warning labels.
6
5. Regularly turn off the machine and clear processed
material from the discharge zone. Buildup near the dis-
charge zone may prevent proper discharge and can re-
sult in kickback of material through the hopper.
6. Turn off the shredder and disconnect it from the pow-
er supply before you leave the work area. The blades
will continue to rotate for a few seconds after the unit
is turned off.
7. If the cutting mechanism strikes a foreign object or if
the shredder starts making any unusual noise or vibra-
tion, turn the unit off and allow it to come to a complete
stop. Disconnect from the power supply and inspect the
unit for damage. Check for any loose parts and tighten
them as necessary.
8. Should any component of your shredder be missing/
damaged or fail in any way, shut off the switch and re-
move the plug from power supply outlet. Have a certi-
fied technician replace the missing, damaged, or failed
parts using only identical replacement parts before re-
suming operation.
9. If the shredder becomes clogged, turn off the shred-
der and disconnect it from power supply. Wait for the
blades to come to a complete stop before clearing de-
bris.
10. Maintain the shredder with care. Keep the cutting
edges sharp and clean to ensure optimal performance
and reduce the risk of injury.
SPECIFIC RULES FOR YOUR SHREDDER
WARNING! Do not operate the power tool until you have read and understood the following instructions
and the warning labels.
7
ELECTRICAL INFORMATION
IMPORTANT: Servicing a double-insulated product requires extreme care and knowledge of the system, and should
be done only by qualified service personnel using identical replacement parts. Always use original factory replace-
ment parts when servicing.
1. Polarized Plugs. To reduce the risk of electric shock, this equipment has a polarized plug (one blade is wider than
the other). This plug will fit in a polarized outlet only one way. If the plug does not fit fully in the outlet, reverse the
plug. If it still does not fit, contact a qualified electrician to install a proper outlet. Do not modify the machine plug
or the extension cord in any way.
2. Ground fault circuit interrupter protection (GFCI) should be provided on the circuit or outlet used for this power
tool to reduce the risk of electric shock.
3. Service and repair. To avoid danger, electrical appliances must only be repaired by qualified service technician
using original replacement parts.
DOUBLE-INSULATED TOOLS
The tool’s electrical system is double insulated where two systems of insulation are provided. This
eliminates the need for the usual three-wire grounded power cord. Double insulated tools do not need
to be grounded, nor should a means for grounding be added to the product. All exposed metal parts
are isolated from the internal metal motor components with protecting insulation.
UNPACKING
With the help of a friend or trustworthy foe, carefully remove the shredder from the packaging. Make sure to take
out all contents and accessories. Do not discard the packaging until everything is removed. Check the packing list
below to make sure you have all of the parts and accessories. If any part is missing or broken, please contact our
customer service at 1-800-232-1195 (M-F 8-5 CST), or email [email protected].
PACKING LIST
UNPACKING & TRANSPORTATION
WARNING! Do not plug in or turn on the tool until it is fully assembled according to the instructions. Failure
to follow the safety instructions may result in serious personal injury.
TRANSPORTING
Use the handle and tilt the shredder to pull it with the wheels. Never carry the tool by its guards or its accessories.
8
AMPERAGE
REQUIRED GAUGE FOR EXTENSION CORDS
25 ft. 50 ft. 100 ft. 150 ft.
15A 14 gauge 12 gauge Not Recommended by UL
1. Examine extension cord before use. Make sure your extension cord is properly wired and in good condition.
Always replace a damaged extension cord or have it repaired by a qualified person before using it.
2. Do not abuse extension cord. Do not pull on cord to disconnect from receptacle; always disconnect by pulling
on plug. Disconnect the extension cord from the receptacle before disconnecting the product from the extension
cord. Protect your extension cords from sharp objects, excessive heat and damp/wet areas.
3. Use a separate electrical circuit for your tool. This circuit must not be less than a 12-gauge wire and should
be protected with a 15A time-delayed fuse. Before connecting the motor to the power line, make sure the switch
is in the OFF position and the electric current is rated the same as the current stamped on the motor nameplate.
Running at a lower voltage will damage the motor.
GUIDELINES AND RECOMMENDATIONS FOR EXTENSION CORDS
When using an extension cord, be sure to use one heavy enough to carry the current your product will draw. An
undersized cord will cause a drop in line voltage resulting in loss of power and overheating. The table below shows
the correct size to be used according to cord length and ampere rating. When in doubt, use a heavier cord. The
smaller the gauge number, the heavier the cord.
ELECTRICAL INFORMATION
Shredder (1) Stand (1) Wheels (2)Collection Bag (1)
Screws (2)
Nuts (2)
Wheel Cap (2)
8/10mm
Wrench (1)
Hex
Wrench (1)
Wheel Axle (1)
Paddle
Holder (1)
Paddle (1)
9
KNOW YOUR SHREDDER
TOOL PURPOSE
Your shredder is designed to cut up small branches and yard waste. Refer to the following diagrams to become
familiarized with all the parts and controls of your shredder. The components will be referred to later in the manual
for assembly and operation instructions.
Hopper
Reset Button
Carbon Brush Cover
Wheel
Discharge Chute
Collection Bag
Hopper Lock Knob
Handle
Feeding Chute
Power Plug
On/Off Switch with
Safety Key
Paddle Holder
ASSEMBLING THE WHEELS & STAND (FIG. 1)
1. Insert the wheel axle (A) through the bottom holes of the
stand (B).
2. Slide the wheels (C) onto both ends of the wheel axle.
Secure each wheel with a nut (D).
3. Snap the wheel covers (E) into each wheel.
4. Insert the two ends of the stand assembly into the bot-
tom of the shredder housing (F). Align the holes and secure
with screws (G).
INSTALLING THE PADDLE HOLDER (FIG. 2)
1. Clip the paddle holder (A) onto one side of the stand.
2. Clip the paddle (B) into the paddle holder.
ASSEMBLY & ADJUSTMENTS
1010
WARNING! Do not plug in or turn on the tool until
it is fully assembled according to the instructions. Read
through and become familiarized with the following
procedures of handling and adjusting your tool. Failure
to follow the safety instructions may result in serious
personal injury.
Fig. 1
A
F
B
G
C
D
E
Fig. 2
A
B
Fig. 3
A
B
NOTE: Place the paddle back into the paddle holder ev-
ery time after using.
CONNECTING THE EXTENSION CORD (FIG. 3)
1. Make sure the power switch is in the OFF position.
2. Select the correct extension cord according to "Electrical
Information" on page 8.
3. Make a knot with the power cord (B) and the extension
cord (A).
4. Connect the plug and receptacle.
COLLECTING SHREDDED MATERIAL
Your shredder comes with a collection bag. Place the col-
lection bag under the discharge chute to collect shredded
material. See page 9.
11
BASIC SHREDDING OPERATION (FIG. 4)
1. Place the shredder on a dry, level ground in the upright
position. Do not operate the shredder if it is tilted or lying
on its side.
2. Check to make sure that the hopper is empty. Close the
hopper tightly by turning the hopper lock knob (A) clock-
wise. The shredder will not run if the hopper is open or not
fully closed.
3. Inappropriate materials may damage the machine and
cutting blades. Examine all materials before feeding them
into the shredder:
• Remove pieces of metal, rocks or other foreign objects
that may damage the blades.
• Do not feed wooden sticks with a diameter larger than
1.5 inch.
• Before shredding roots, remove any remaining soil and
stones.
• Do not shred soft, damp material such as kitchen waste.
4. Connect the shredder to the power source and turn the
power switch to ON (B).
5. Follow the rules below when feeding materials:
• Only insert as much material as needed to prevent
blockage of the feeding chute.
• Feed wilted and damp materials alternately with dry
branches to prevent cutting blades from blocking up.
• Branches with leaves must be completely processed
before new material is fed. Make sure that the chopped
material can fall freely from the discharge chute.
• Maintain the working speed of the shredder and do not
overload it.
• Keep a few dry branches to be shredded at the end, as
they will help clean your shredder.
OPERATION
WARNING! Do not plug in or turn on the tool until it is fully assembled according to the instructions. Read
through and become familiarized with the following procedures of handling and adjusting your tool. Failure to
follow the safety instructions may result in serious personal injury.
WARNING! Wear ANSI Z87.1-approved safety glasses, work-appropriate clothing, work gloves, and dust
mask. Read through the safety section. Do not allow any part of the body or your clothing near the feeding
chute or the discharge chute. Never reach under the hopper until the shredder has come to a complete stop and
has been disconnected from the power supply.
Fig. 4
A
B
NOTE: For optimal performance, we recommend
shredding materials with diameters less than 1".
NOTE: The power switch is equipped with a
safety key to prevent children from accidentally
starting the machine. Turn off the power switch
and remove the safety key to engage the child-
safety lock and prevent unwanted start-ups. The
switch cannot be turned on when the safety key
is removed.
6. Slowly insert the branch into the hopper through
the feeding chute (p. 9). Keep hold of the branch
at a safe distance from the feeding chute until it is
automatically drawn into the shredder.
7. Use the included paddle to push the material inside
the hopper, but be careful not to shred the paddle.
8. Only switch off the shredder after all of the shred-
ding materials have passed through the discharge
chute. Otherwise, the discharge chute may jam the
next time the shredder is turned on.
9. When all shredding work is complete, switch the
machine to OFF and unplug the power cord. Wait for
the blades to come to a complete stop before leaving
the work area.
12
OPERATION
TROUBLESHOOTING GUIDE
WARNING! Stop using the tool immediately if any of the following problems occur. Repairs and replacements
should only be performed by an authorized technician. For any questions, please contact our customer service
at (800) 232-1195, M-F 8-5 CST or email us at [email protected].
PROBLEM POSSIBLE CAUSE SOLUTION
Motor does
not start.
1. Power cord or extension
cord damaged or not properly
plugged in.
1. Check the power cord, extension cord, power
plug, and the power outlet. Make sure the tool is
properly plugged in. Do not use the tool if any cord is
damaged.
2. Safety key is removed from
power switch.
2. Insert the safety key into the power switch.
3. Motor is overloaded and
circuit breaker trips.
3. The material may be too much or too hard for the
shredder to handle. Wait for motor to cool down, and
press the reset button. Reduce the material load and
restart the shredder.
4. The hopper is open.
4. Check that the hopper is closed and the hopper
lock knob is tightened.
Material cannot
be fed into the
shredder.
1. The material is jammed in
the feed inlet.
1. Turn off and unplug the machine. Open the hopper
and remove blocked or jammed materials.
2. The cutting blades are
blocked.
2. Turn off and unplug the machine. Open the hopper
and blade cover. Remove blocked material from the
blade. Close the blade cover and hopper.
3. The discharge chute is
blocked.
3. Turn off and unplug the machine. Open the hopper
and the plate of the discharge chute to clear the
blocked material. Replace the plate and hopper.
Inefficient cutting.
1. Cutting blade edges are
worn.
1. Reverse the blades or replace with new blades.
OVERLOAD PROTECTION (FIG. 5)
Your electric shredder is equipped with overload protec-
tion. If the shredder is clogged during shredding, the over-
load protection will cut the power automatically to protect
your shredder. Wait at least 1 minute for the motor to cool
down before restarting the unit.
To restart the shredder:
1. Press the reset button (A).
2. Turn the power switch ON (B).
Fig. 5
A
B
3. If the shredder will not start, it might be jammed
inside. Turn the shredder OFF and unplug the power
cord. Wait for the blades to come to a complete stop.
Clear the clogged materials.
13
ROUTINE INSPECTION
Before each use, inspect the general condition of the
tool. If any of these following conditions exist, do not
use until parts are replaced or the tool is properly re-
paired.
Check for:
• Loose hardware,
• Misalignment or binding of moving parts,
• Damaged cord/electrical wiring,
• Cracked or broken parts, and
• Any other condition that may affect its safe operation.
CLEANING & STORAGE
1. Keep the ventilation openings free from dust and de-
bris to prevent the motor from overheating.
2. Use a vacuum or low-pressure compressed air to
remove dust and debris from the tool surfaces, motor
housing and work area.
3. Wipe the tool surfaces clean with a soft cloth or
brush. Make sure water does not get into the tool.
MAINTENANCE
WARNING! To avoid accidents, turn OFF and unplug the tool from the electrical outlet before cleaning,
adjusting, or performing any maintenance work.
WARNING! Wear protective gloves to protect
your hands. Cutting blades have sharp edges on
both sides and are fragile. Handle the blades careful-
ly to avoid personal injury or damage to the blades.
CAUTION! Most plastics are susceptible to damage
from various types of commercial solvents. Do not
use any solvents or cleaning products that could
damage the plastic parts. Some of these include but
are not limited to: gasoline, carbon tetrachloride,
chlorinated cleaning solvents, and household deter-
gents that contain ammonia.
To clean the inside of the unit, turn the hopper locking
knob counterclockwise, and open the hopper. Clean the
cutting blades and the discharge area. Remove wood
sticks or objects that may clog the blades. Check the
blades for damage and replace if they show signs of
wear. Replace the hopper and lock the hopper locking
knob by turning it clockwise.
4. Store the tool in a clean and dry place away from the
reach of children. Store in temperatures between 41° to
86°F.
5. Cover the tool in order to protect it from dust and
moisture. It is preferable to store it in its original pack-
aging with the instruction manual and all accessories.
PRODUCT DISPOSAL
Used power tools should not be disposed of together
with household waste. This product contains electronic
components that should be recycled. Please take this
product to your local recycling facility for responsible
disposal and to minimize its environmental impact.
Please recycle the packaging and
electronic components where facilities
exist.
REPLACING CUTTING BLADES
The shredder comes with two cutting blades pre-
installed that can be reversed or replaced to keep the
cutting edges sharp. The two blades should always be
reversed or replaced as a matched set.
It is recommended to replace/reverse the blades when
the wood sticks can not be automatically drawn into the
shredder after entering the hopper. One set of sharp
edges can cut approximately 400 lbs of materials, de-
pending on the hardness and quality of the sticks. When
the cutting capacity is reached, make sure to replace/
reverse the shredder blades to maintain optimal perfor-
mance.
TIP: Replacement blades (Part No. 41121B) can be
ordered in 2-packs at wenproducts.com. These are
wear-out parts and therefore not covered under the
warranty.
Instructions continue on the next page.
REPLACING CUTTING BLADES (FIG. 6)
1. Turn off and unplug the machine. Wait for the blades
to come to a complete stop.
2. Fully unscrew the hopper lock knob (p. 9) until
it springs out. Open the hopper to access the cutting
head (A).
3. Clean out all chips or foreign matter sticking to the
cutting head and blades (B) using a soft brush.
4. Rotate the cutting head to the configuration shown
in Fig. 6. To prevent the cutting head from rotating dur-
ing blade change, insert a screwdriver through the blade
guard hole (C) and the slot in the cutting head.
5. Unscrew the two hex bolts (D) on the top blade. Turn
the cutting head 180 degrees to remove the other blade.
6. The blades may be reversed when one of the cutting
edges becomes dull or chipped. Reverse the direction
of the original blades, or install two new blades. Make
sure to reverse or replace both blades at the same time
so they are balanced with one another. Align the slots on
the blade with the grooves on the cutting head.
7. Secure each blade with two hex bolts, firmly tighten
them with a hex wrench. Close the hopper and fully
tighten the hopper locking knob.
CARBON BRUSH REPLACEMENT (FIG. 7)
The wear on the carbon brushes depends on how fre-
quently and how heavily the tool is used. To maintain
maximum efficiency of the motor, we recommend in-
specting the two carbon brushes every 60 hours of op-
eration or when the tool stops working.
1. Turn off and unplug the machine. Wait for the blades
to come to a complete stop.
2. The two carbon brushes can be accessed through the
front and back carbon brush cover located on the bot-
tom of the shredder body. Unscrew the Phillips head
screw from the housing and open the carbon brush
cover (A).
3. Unscrew the two small Phillips screws (B) to remove
the carbon brush holder. Carefully remove the old car-
bon brushes using pliers.
14
MAINTENANCE
NOTE: Keep track of which orientation the old carbon
brushes were in to prevent needless wear if they will be
reinstalled.
4.
Measure the length of the brushes (Fig. 7). Install
the new set of carbon brushes if either carbon brush
length is worn down to 3/16" or less. Reinstall the
old carbon brushes (in their original orientation) if
your brushes are not worn down to 3/16" or less.
Both carbon brushes should be replaced at the same
time.
5. Replace the carbon brush holder and cover. Tighten
all screws. Repeat the steps above to replace the carbon
brush located on the other side of the motor.
NOTE: New carbon brushes tend to spark for a few min-
utes during the first use as they wear down.
WARNING! Wear protective gloves to protect your hands. Cutting blades have sharp edges on both sides
and are fragile. Handle the blades carefully to avoid personal injury or damage to the blades.
Fig. 6
Carbon
Brush
Length
Fig. 7
CB
AD
TIP: Replacement carbon brushes can be ordered at
wenproducts.com (Part No. 41121-027-18). Only
genuine WEN replacement brushes designed spe-
cifically for your tool should be used. Carbon brush-
es are not covered under the two-year warranty.
A
B
15
EXPLODED VIEW & PARTS LIST
15
EXPLODED VIEW & PARTS LIST
16
No. Part No. Description Qty.
1 41121-001 Hopper 1
2 41121-002 Preventer Plate 1
3 41121-003 Press Bar 1
4 41121-004 Self Tapping Screw 15
5 41121-005 Handle 1
6 41121-006 Flange Tapping Screw 17
7 41121-007 Housing 1
8 41121-008 Hopper Locking Knob 1
9 41121-009 Compression Spring 1
10 41121-010 Knob Holder 1
11 41121-011 Washer 1
12 41121-012 Switch Pin 1
13 41121-013 Washer 1
14 41121-014 Axis With Circlips 1
15 41121-015
Type 1 Non-Metallic
Hex Nuts
2
16 41121-016 Pull Rod 1
17 41121-017 Air Deflector 1
18 41121-018 Dust Against Plate 1
19 41121-019 Self Tapping Screw 8
20 41121-020 Hexagon Headed Bolt 1
21 41121-021 Internal Washer 1
22 41121-022 Briquet 1
23 41121-023 Hexagon Screw 4
24 41121B Blade 2
25 41121-025 Static Blade 1
26 41121-026 Transmission Shaft 1
27 41121-027 Motor Assembly 1
27-1 41121-027-1 Tapping Screw 19
27-2 41121-027-2
Reduction Casing Upper
Cover
1
27-3 41121-027-3 Belt 1
27-4 41121-027-4 Belt-Wheel 1 1
27-5 41121-027-5 Belt-Wheel 2 1
27-6 41121-027-6 Wobbler 1
27-7 41121-027-7
Reduction Casing
Lower Cover
1
27-8 41121-027-8 Spring Washer 2
27-9 41121-027-9 Flat Washer 4
27-10 41121-027-10 Stator Screw 2
27-11 41121-027-11 Motor Front Bracket 1
27-12 41121-027-12 Stator Assembly 1
No. Part No. Description Qty.
27-13 41121-027-13 Rotor Assembly 1
27-14 41121-027-14 627 Bearing 1
27-15 41121-027-15 Motor Rear Bracket 1
27-16 41121-027-16 Tapping Screw 4
27-17 41121-027-17
Carbon Brush
Assembly
2
27-18 41121-027-18 2
24-19 41121-027-19 Hexagon Nut 2
27-20 41121-027-20 Plate For Brush Holder 2
28 41121-028 Plastic Pin 2
29 41121-029 Base 1
30 41121-030 Strong Off Switch 1
31 41121-031 Hexagon Nut 1
32 41121-032 Safety Key 1
33 41121-033
Electrical Assembly
Components
1
34 41121-034 Cable Clamp 1
35 41121-035 Sleeve Clamp 1
36 41121-036 Housing Assembly 1
37 41121-037 Overload Protector 1
38 41121-038 Dustproof Power Switch 1
39 41121-039 Cable Sleeve 1
40 41121-040 Power Cord 1
41 41121-041 Screw 2
42 41121-042
Carbon Brush
Front Cover
1
43 41121-043 Push Stick 1
44 41121-044
Carbon Brush
Rear Cover
1
45 41121-045 Fixing Holder 1
46 41121-046 Lower Frame 1
47 41121-047 Axle 1
48 41121-048 Wheel 2
49 41121-049 Lock Nut 2
50 41121-050 Wheel Cover 2
51 41121-051 Connecting Wire 2
52 41121-052 Connecting Wire 1
53 41121-053 Collection Bag 1
54 41121-054 Heat Shrinkable Tube 1
55 41121-055 Heat Shrinkable Tube 1
56 41121-056 Nylon Rope 2
57 41121-057 Wrench 1
58 41121-058 Hex Wrench 1
WARRANTY
17
WEN Products is committed to building tools that are dependable for years. Our warranties are consistent with this
commitment and our dedication to quality.
LIMITED WARRANTY OF WEN PRODUCTS FOR HOME USE
GREAT LAKES TECHNOLOGIES, LLC (“Seller”) warrants to the original purchaser only, that all WEN consumer power
tools will be free from defects in material or workmanship during personal use for a period of two (2) years from date
of purchase or 500 hours of use; whichever comes first. Ninety days for all WEN products if the tool is used for pro-
fessional or commercial use. Purchaser has 30 days from the date of purchase to report missing or damaged parts.
SELLER’S SOLE OBLIGATION AND YOUR EXCLUSIVE REMEDY under this Limited Warranty and, to the extent per-
mitted by law, any warranty or condition implied by law, shall be the replacement of parts, without charge, which are
defective in material or workmanship and which have not been subjected to misuse, alteration, careless handling,
misrepair, abuse, neglect, normal wear and tear, improper maintenance, or other conditions adversely affecting the
Product or the component of the Product, whether by accident or intentionally, by persons other than Seller. To make
a claim under this Limited Warranty, you must make sure to keep a copy of your proof of purchase that clearly defines
the Date of Purchase (month and year) and the Place of Purchase. Place of Purchase must be a direct vendor of Great
Lakes Technologies, LLC. Purchasing through third party vendors, including but not limited to garage sales, pawn
shops, resale shops, or any other secondhand merchant, voids the warranty included with this product. Contact tech-
[email protected] or 1-800-232-1195 with the following information to make arrangements: your shipping
address, phone number, serial number, required part numbers, and proof of purchase. Damaged or defective parts
and products may need to be sent to WEN before the replacements can be shipped out.
Upon the confirmation of a WEN representative, your product may qualify for repairs and service work. When re-
turning a product for warranty service, the shipping charges must be prepaid by the purchaser. The product must
be shipped in its original container (or an equivalent), properly packed to withstand the hazards of shipment. The
product must be fully insured with a copy of the proof of purchase enclosed. There must also be a description of the
problem in order to help our repairs department diagnose and fix the issue. Repairs will be made and the product
will be returned and shipped back to the purchaser at no charge for addresses within the contiguous United States.
THIS LIMITED WARRANTY DOES NOT APPLY TO ITEMS THAT WEAR OUT FROM REGULAR USAGE OVER TIME,
INCLUDING BELTS, BRUSHES, BLADES, BATTERIES, ETC. ANY IMPLIED WARRANTIES SHALL BE LIMITED IN DU-
RATION TO TWO (2) YEARS FROM DATE OF PURCHASE. SOME STATES IN THE U.S. AND SOME CANADIAN PROV-
INCES DO NOT ALLOW LIMITATIONS ON HOW LONG AN IMPLIED WARRANTY LASTS, SO THE ABOVE LIMITATION
MAY NOT APPLY TO YOU.
IN NO EVENT SHALL SELLER BE LIABLE FOR ANY INCIDENTAL OR CONSEQUENTIAL DAMAGES (INCLUDING BUT
NOT LIMITED TO LIABILITY FOR LOSS OF PROFITS) ARISING FROM THE SALE OR USE OF THIS PRODUCT. SOME
STATES IN THE U.S. AND SOME CANADIAN PROVINCES DO NOT ALLOW THE EXCLUSION OR LIMITATION OF IN-
CIDENTAL OR CONSEQUENTIAL DAMAGES, SO THE ABOVE LIMITATION OR EXCLUSION MAY NOT APPLY TO YOU.
THIS LIMITED WARRANTY GIVES YOU SPECIFIC LEGAL RIGHTS, AND YOU MAY ALSO HAVE OTHER RIGHTS
WHICH VARY FROM STATE TO STATE IN THE U.S., PROVINCE TO PROVINCE IN CANADA AND FROM COUNTRY TO
COUNTRY.
THIS LIMITED WARRANTY APPLIES ONLY TO ITEMS SOLD WITHIN THE UNITED STATES OF AMERICA, CANADA
AND THE COMMONWEALTH OF PUERTO RICO. FOR WARRANTY COVERAGE WITHIN OTHER COUNTRIES, CON-
TACT THE WEN CUSTOMER SUPPORT LINE. FOR WARRANTY PARTS OR PRODUCTS REPAIRED UNDER WARRAN-
TY SHIPPING TO ADDRESSES OUTSIDE OF THE CONTIGUOUS UNITED STATES, ADDITIONAL SHIPPING CHARGES
MAY APPLY.
18
NOTES
19
NOTES
v.2019.09.18
THANKS FOR
REMEMBERING
/
